Value Brand
Value Brand 1 in FNPT 316 Stainless Steel Threaded Union Class 3000
Connects two pipe ends without rotation using corrosion-resistant 316 stainless steel rated for 2900 psi at 100°F
- Corrosion-resistant 316 stainless steel withstands harsh environments
- Class 3000 rating handles up to 2900 psi at 100°F
- Threaded union connects pipes without rotation for quick maintenance
- Meets ASTM A182 and ANSI/ASME B1.20.1 standards
- Female NPT threads on both sides fit 1-inch pipe
Application & User
This 1-inch FNPT threaded union joins two pipe ends without rotating either length, making it suitable for maintenance points in process piping. It is built for installers who need a corrosion-resistant 316 stainless steel joint rated to Class 3000 service conditions.
Interface Limits
The connection uses ANSI/ASME B1.20.1 taper threads at 11 1/2 threads per inch on both sides, so sealing relies on proper thread engagement and compatible sealant. Pressure capability is 2900 psi at 100°F per the Class 3000 rating under MSS SP-83.
Compatibility Check
Verify that the mating pipes are 1-inch NPT male threads and that the system design pressure and temperature stay within the 2900 psi at 100°F envelope. Confirm the 316 stainless material is acceptable for the fluid media and that ASTM A182 conformance meets any project specifications.
Highlights
- Corrosion-resistant 316 stainless steel withstands harsh environments
- Class 3000 rating handles up to 2900 psi at 100°F
- Threaded union connects pipes without rotation for quick maintenance
- Meets ASTM A182 and ANSI/ASME B1.20.1 standards
- Female NPT threads on both sides fit 1-inch pipe
Specifications
| Brand | ZORO SELECT |
|---|
Questions about this item
Should I choose the 1 in FNPT 316 stainless steel union or a different size?
Select the 1 in FNPT size when your pipe has a 1-inch nominal bore and 11 1/2 threads per inch; other sizes will not match those threads.
What does the 2900 psi @ 100°F rating mean when the union is installed?
It is the maximum working pressure at 100 °F; at higher temperatures the allowable pressure decreases.
How do the ANSI/ASME B1.20.1 threads and Class 3000 rating work together?
The threads follow ANSI/ASME B1.20.1 for NPT sealing, while Class 3000 defines the pressure boundary for 316 stainless steel per ASTM A182 and MSS SP-83.
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